Amazon EC2 Auto Scaling Documentation
Automate scaling in and out
Choose when and how to scale
Scale dynamically based on your Amazon CloudWatch metrics, or predictably according to a schedule that you define. Receive notifications via Amazon Simple Notification Service (Amazon SNS) to be alerted when you use Amazon CloudWatch alarms to initiate Amazon EC2 Auto Scaling actions, or when EC2 Auto Scaling completes an action.
Automating how your Amazon EC2 fleet is managed can help maintain the availability of your applications. Amazon EC2 Auto Scaling is designed to automatically replace unhealthy or unreachable instances to maintain higher availability of your applications. To automate fleet management for EC2 instances, EC2 Auto Scaling is designed to monitor the health of running instances, automatically replace impaired instances, and balance capacity across Availability Zones. Learn more.
Predictive Scaling is designed to predict future traffic, including regularly-occurring spikes, and helps provision the right number of EC2 instances in advance of predicted changes. Predictive Scaling’s machine learning algorithms are designed to detect changes in daily and weekly patterns, automatically adjusting their forecasts. This is designed to remove the need for manual adjustment of Auto Scaling parameters over time, making Auto Scaling simpler to configure and consume. Auto Scaling enhanced with Predictive Scaling is designed to deliver faster, simpler, and more accurate capacity provisioning and result in lower cost and more responsive applications.
Support for multiple purchase models, instance types, and AZs
Included with Amazon EC2
For additional information about service controls, security features and functionalities, including, as applicable, information about storing, retrieving, modifying, restricting, and deleting data, please see https://docs.aws.amazon.com/index.html. This additional information does not form part of the Documentation for purposes of the AWS Customer Agreement available at http://aws.amazon.com/agreement, or other agreement between you and AWS governing your use of AWS’s services.